Grain-separator.



No. 665,2!3. Patented Ian. 1901.

H. c. HANSON.

GRAIN SE'PARATUR.

. {Application filed June 6, 1900.,-

(Nq Modal.) 2 Sheets-Sheet l.

S I rueMifo:

6726 G E/230m Q vil'nemco Q 7 N o. 66 5,2I3. Patented Ian. |9o|..

H.C.HANSDN.

GRAIN SEPARATUR.

(Application filed June 6, 1900.;

' 2 SheetsSheet 2.

(No Model.)

Q Vifnnoco motion of the shaking frame thescreen B, which extends the entire length of said'side pieces and is provided with a series of depressions or steps, as shown, which causes the .grain to move over said screen slowly, thusthoroughly eliminating the small and inferior grainsand allowing the first-class grain to pass to the end of the screen and onto the delivery-spout 18, which is pivoted on the lower tierod 5 of the frame 14" A coiled spring is provide beneath the frame 14, having one end attached to a tierod 5" in the supporting-standards and the other end attached to the shaking frame 14., the force of the spring being exerted to give the movable parts a quick jerky motion.

Intel-posed between the upper graded set of screens A, A, and A and the screen B at the front of the frame is an oatcleaner consisting of a perforated plate or screen D, having openings which are somewhat smaller than the openings in the upper set of screens A, A, and A The grain is conducted to the forward and highest end of the screen D from the grain-board A by a curved plate 21, con-. nected to the forward ends of the upper and lower side pieces 15 and 16 of the shaking frame 14: and servihg as a shield to prevent the grain falling from the front end oftlie grain hoard from passing out at the front of the machine. Located at the lower end of the screen D is an inclined delivery-chute 22, which is arranged to conduct the oats laterally to one side of the machine, where they may be received in a suitable receptacle, and located at the upper end of said screen D is a transverse roll 23, removably secured to the side pieces 16 and having attached thereto a flexible apron 24, which covers the entire upper surface of the said screen D. The jourmale 23" 23 in the side pieces 16 of the frame 14, so as to be readily applied to and removed from the shaking frame. One end of the apron is attached to the 'roll, while the opposite end thereof is free and unconfined. By this cpnstruction the apron may be convenienjtiy wound upon the roll whenever it is desired to expose the screen D and whenever it is desired to remove the oat-cleaning device from the shaking frame.

In the practical operation of the machine the grain is fed from the hopper onto the screen A through the medi u m of the feed-roll l7, and thence passes downwardly through the screens A and A and onto the grain board A, the white capsand the pieces of straw and such other refuse matter as the grain may contain being blown out at the front of the machine. The grain then falls from the feed board down onto the front upper end of the screen B, being guided thereto by the curved shield-plate 21. The vibratory 14 then causes of this 01123 are mounted in slots the grain to move rearwardly down the inclined screen D and under the flexible apron 24, which serves to yieldingly retain the grain in contact with said screen and cause the wheat to be separated from the cats and forced through the openings in the screen D down onto screen B therebelow. The openings in the screen D are somewhat smaller than the openings in the upper set of screens A, A, and A so as to prevent the passage of oats therefrom and down onto screen B, so that the oats are forced to pass downwardly along the upper surface of the screen D and are thereby conducted into the chute 22, frpm which they discharge at the side of the machine. Thegrains of Wheat thence pass along the surface of the screen B, the first-class grain passing into the delivery-spout 18,while the inferior grains fall through and onto the screen 0. The grain discharges from the screen 0 onto the door or into asuitable receptacle at the rear of the separator under the spout 18, the grain passing beneath said spent and dropping from the rear end of said' screen.

As shown in the drawings, the parts of the device are arranged in position for-separating oats, straw, and other foreign matter from wheat. To adapt the device for separating wheat and other sn'mller grains from oats, it is simply necessary to substitute for the upper set of screens A, A, and A a coarse-wire screen and to remove the oat-cleaner, leaving the twolower screens B and O in position, as for wheat.

Various changes in the form, proportion, and minor details of construction may be resorted to without departing fronrthe principics or sacrificing any of the advantages of this invention.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

In a grain-separator, the combination, with a frame and a shaking shoe-mounted therein, of an oat-cleaning device mounted on said shoe and comprising a screen, a roll detachably mounted in the frame at the head of the screen,. and a flexible apron covering the screen and secured at one end to said. roll,

' the opposite end-of the apron being free and unconfined so that the apron may be wound upon the roll so as to expose the screen and adapt the roll and apron for removal from the frame, substantially as set forth.

In testimony whereofl have hereunto set my hand in the presence of two subscribing witnesses.

HANS C. HAN-SON. Witnesses:

A. J. CAMPBELL, -A. O. EASTMAN. 

